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Class D Switching Power Amplifiers and Power D/A conversion

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Old 19th November 2004, 09:25 PM   #81
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Thanks for posting that email from X10. Tells me its' the kind of place I'd deal with.

Long drawn out story you're free to skip:
I remember one time I bought some ram for my computer at a time when the price of it was skyrocketing.

I paid 80$ (in full) for a stick of 128mb, they were supposed to order it that day and I'd have it in two days. Three days later I called them and they hadnt' yet ordered it?

I think they were waiting for the price to drop again to increase their profit on it. Didn't work though. Then I was told they just couldnt' give it to me until I paid the balance on it, another 80$.

The owner of the store was conveniently on a "holiday" when I told them I'd be in to pick it up, they had a cute girl at the cash, armed with a note, not to give me the ram until I paid the balance. I didn't want to rip into her over it as she was just a pawn. She was shaking and I was being entirely cordial. So I told her get me the owner on the phone, and I'll deal with him.

Turns out the owners wife, co-owner, was hiding in the back room the whole time. I gave her a "photocopy" of my receipt that said "paid in full" on it. After talking to her husband on the phone for over half an hour while I waited she came out screaming, saying I was taking the food off her table, I resisted the temptation of saying they should pay me for the favor as she weighed at least 400lbs. So she made a huge sceen in her own store with at least 10 people in there looking on, and gave me what they owed me.

Happy ending right?

I put the ram in and my buggy computer got so buggy I was trying to do homework while formatting at least three times in a night. I suspected bad ram right off but didn't want to go back to that store sooooo bad I wound up replacing my motherboard, case, video card... just in denial. In the end I didn't have a problem getting the ram exchanged and finally had a computer that ran half decent, but I still bad mouthed them all over town.

I hope someone appreciates that little story
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Old 19th November 2004, 09:36 PM   #82
MEXXX is offline MEXXX  United States
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With the great price I'm getting these amps for, I can now justify the $40+ I'm going to spend at partsexpress on connectors for my 4 channel amp case.

BTW, can anyone suggest a good double gang pot thats not quite as expensive as the Alps Blue Velvet.

TIA,

MEXXX
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Old 19th November 2004, 09:46 PM   #83
tiroth is offline tiroth  United States
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It's quite possible that they will fill these orders, just be warned that this item might also be "out of stock forever."

You could try the motorized pots that All Electronics sells, only $4.
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Old 19th November 2004, 11:10 PM   #84
amt is offline amt  United States
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Tangent has the 50k Blue Velvet for only $16. Well worth the few extra dollars. Read the blurb they have on sound quality and testing- Good info.

http://tangentsoft.net/audio/shop/


Bill, Thanks for the thumbs up. And if by "dress up kit" you mean a complete amp sans the board, it looks like thats the direction Im headed due to the requests.


amt
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Old 20th November 2004, 06:28 AM   #85
Variac is offline Variac  United States
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Hey guys, throw a few amps our way in the Trading Post!

I don't think we would begrudge you making a good profit!!

$15 ea. or similar is still a great deal for all.
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Old 20th November 2004, 08:53 PM   #86
Bill F. is offline Bill F.  United States
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Hey CD,

I didn't mention it before, but I'm sending you one for free as thank-you for posting the X-10 deal. Please email me your address, and as soon as my ship comes in, I'll bump one your way.
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Old 22nd November 2004, 11:44 PM   #87
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Any further clarification from anyone on these two amps?

http://www.cheapgeek.net/assets/revi...pact_si5_3.jpg

http://www.partsexpress.com/pe/showd...number=300-952

Target has the first amp packaged with a couple of (throw away?) speakers for 17.99. But is it really the same innards that people are modding here?
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Old 22nd November 2004, 11:56 PM   #88
Variac is offline Variac  United States
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bb,

Those links don't work for me.

I just bought one of the speaker/amp paks for 17.99 you mentioned at Target to see whats in them. If anyone knows, pleas speak up so I don't open the package- I'm thinking of returning it.

It may not be a digi amp.
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Old 23rd November 2004, 12:44 AM   #89
amt is offline amt  United States
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Their site says that it is a low power digital amp but its hard to say whats in it. Tripaths smallest amp is the TA2024 thats in the T-amp so someones going to have to take the plunge and find out. 2 watts max it pretty low power but might be a good headphone amp.

http://www.si-5.com/newproducts.html#5

amt
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Old 23rd November 2004, 01:27 AM   #90
flubug is offline flubug  United States
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Default $17.99 Target clearance amp

I've got one opened in front of me now. The board is definitely different from what AMT showed in the first posts in this thread. The Board is labeled as "SI-5-A3, REV: A3, 2003-10-16. There is only one IC (YG2822 D3G0AA), one diode, seven electrolytic caps and a handful of resistors and ceramic caps.
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